# mitsuhiko/pluginbase

A simple but flexible plugin system for Python.

Repository: https://github.com/mitsuhiko/pluginbase
Canonical: https://ross.abutalabs.com/products/pluginbase
Language: Python
License: NOASSERTION
License Family: other
Last push: 2021-05-16T16:23:31+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4447, "days_push": 1935, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1139, forks 141 (observed 2026-08-28T04:03:44.258582+00:00)

## What it is
PluginBase is a Python library for building flexible plugin systems in applications. It manages plugin discovery and loading through virtual packages and search paths.

## Use cases
- add a plugin system to my python app
- load plugins from multiple directories
- let users extend my application with python modules
- discover and import plugins at runtime
- build an extensible cli tool

## When to choose
- you need a lightweight, simple plugin loading mechanism for Python
- you want plugins organized in separate directories loaded via a virtual package
- you prefer a minimal library with a small API surface

## When to avoid
- you need entry-point based plugin discovery for installed packages
- you need sandboxing or isolation of plugin code
- the project appears unmaintained and you need long-term support

## Facets
- artifact type: library
- maturity: maintenance
- function: plugin-system
- domain: developer-tools, programming-languages
- platform: python, cross-platform
- tags: plugin-loading, extensibility, import-hooks

## Member repositories
- mitsuhiko/pluginbase (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:44.258582+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:35:53.588306+00:00, confidence not recorded.
  - readme: https://github.com/mitsuhiko/pluginbase (fetched 2026-08-28T04:03:44.258582+00:00, sha daf8ab852617)
  - registry_pypi: https://pypi.org/pypi/pluginbase/json (fetched 2026-08-29T12:41:03.726016+00:00, sha 1120f3fd1e9e)
- Data as of 2026-08-30T08:39:29.467469+00:00.